<script setup>
    import categoryApi from "@/api/catetory.js";
    import WangEditor from "@/components/WangEditor.vue";
    import {ref} from "vue";
    import {ElMessage, ElMessageBox} from "element-plus";
    import {
        Delete,
        Edit,
        Upload,
        Download,
        Plus
    } from '@element-plus/icons-vue'
    import router from "@/router/index.js";
    //数据表格
    const list = ref([])
    const total = ref(0)
    //分页信息和搜索条件
    const categoryQuery = ref({
        name: '',
        page: 1,
        limit: 10
    })
    const dateTimeRange = ref([])

    /*categoryApi.list(categoryQuery.value).then(result => {
        list.value = result.data.records
        total.value = result.data.total
    })*/

    const loadData = () => {
        categoryApi.list(categoryQuery.value).then(result => {
            if (result.code == 0) {
                list.value = result.data.records
                total.value = result.data.total
            }
        })
    }

    loadData()

    const onSearch = () => {
        categoryQuery.value.page = 1
        categoryQuery.value.beginUpdateTime = null
        categoryQuery.value.endUpdateTime = null
        if(dateTimeRange.value && dateTimeRange.value.length == 2) {
            categoryQuery.value.beginUpdateTime = dateTimeRange.value[0]
            categoryQuery.value.endUpdateTime = dateTimeRange.value[1]
        }
        loadData()
    }

    const reset = () => {
        categoryQuery.value.name = ''
        dateTimeRange.value = []
    }

    //根据id删除
    const deleteById = (id) => {
        ElMessageBox.confirm(
            '您确认要删除么?',
            '警告',
            {
                confirmButtonText: '确认',
                cancelButtonText: '取消',
                type: 'warning',
            }
        ).then(() => {
            categoryApi.deleteById(id).then(result => {
                if (result.code == 0) {
                    ElMessage.success(result.msg)
                    loadData()
                } else {
                    ElMessage.error(result.msg)
                }
            })
        })
    }

    //批量删除
    const ids = ref([])
    const handleSelectionChange = (rows) => {
        console.log('多选', rows)
        ids.value = rows.map(function (row) {
            return row.id;
        })
        console.log(ids.value)
    }

    const deleteAll = () => {
        ElMessageBox.confirm(
            '您确认要删除么?',
            '警告',
            {
                confirmButtonText: '确认',
                cancelButtonText: '取消',
                type: 'warning',
            }
        ).then(() => {
            categoryApi.deleteAll(ids.value).then(result => {
                if (result.code == 0) {
                    ElMessage.success(result.msg)
                    loadData()
                } else {
                    ElMessage.error(result.msg)
                }
            })
        })
    }

    //添加、编辑
    const dialogFormVisible = ref(false)
    const category = ref({})
    const showAddDialog = () => {
        category.value = {}
        dialogFormVisible.value = true
        topCategory.value = ''
    }

    const showUpdateDialog = (id) => {
        dialogFormVisible.value = true
        category.value = {}
        categoryApi.selectById(id).then(result => {
            if (result.code == 0) {
                category.value = result.data
            }
        })
    }

    const addOrUpdate = () => {
        if (category.value.id) {
            categoryApi.update(category.value).then(result => {
                if (result.code == 0) {
                    ElMessage.success(result.msg)
                    dialogFormVisible.value = false
                    loadData()
                } else {
                    ElMessage.error(result.msg)
                }
            })
        } else {
            categoryApi.add(category.value).then(result => {
                if (result.code == 0) {
                    ElMessage.success(result.msg)
                    dialogFormVisible.value = false
                    loadData()
                } else {
                    ElMessage.error(result.msg)
                }
            })
        }
    }

    //分类
    const topCategory = ref()
    const topCategoryList = ref([])
    const selectTopCategoryList = () => {
        categoryApi.selectTopCategoryList().then(result => {
            topCategoryList.value = result.data
        })
    }


    const onLevelChange = (val) => {
        if (val == 0) {
            category.value.parentId = 0
        } else {
            category.value.parentId = ''
            selectTopCategoryList()
        }
    }

</script>

<template>
    <el-card class="">
        <template #header>
            <div class="header">
                <el-button type="primary" :icon="Plus" @click="showAddDialog">添加</el-button>
                <el-button type="primary" :icon="Delete" @click="deleteAll">批量删除</el-button>
                <el-button type="primary" :icon="Download" @click="exportExcel">导出Excel</el-button>
                <el-upload
                    :icon="Upload"
                    class="inline-block"
                    multiple=""
                    method="post"
                    action="/api/course/importExcel"
                    style="display:inline-block;margin-left: 12px"
                    accept=".xlsx,.xls"
                    :show-file-list="false"
                    :on-success="importExcelSuccess"
                    :headers="headers"
                    name="file">
                    <el-button type="primary" :icon="Upload">导入Excel</el-button>
                </el-upload>
            </div>
        </template>
        <el-form :inline="true">
            <el-form-item label="名字">
                <el-input v-model="categoryQuery.name" placeholder="请输入名字" clearable  style="width: 200px"/>
            </el-form-item>
            <el-form-item label="更新时间" :label-width="80">
                <el-date-picker
                    clearable
                    v-model="dateTimeRange"
                    type="datetimerange"
                    start-placeholder="开始时间"
                    end-placeholder="结束时间"
                    value-format="YYYY-MM-DD HH:mm:ss"
                />
            </el-form-item>
            <el-form-item>
                <el-button type="primary" @click="onSearch">搜索</el-button>
                <el-button type="warning" @click="reset">重置</el-button>
            </el-form-item>
        </el-form>
        <el-table :data="list" style="width: 100%" ref="multipleTableRef" @selection-change="handleSelectionChange">
            <el-table-column type="selection" width="55" />
            <el-table-column fixed prop="id" label="ID"/>
            <el-table-column prop="name" label="名字"/>
            <el-table-column prop="parentId" label="上级分类"/>
            <el-table-column prop="updateTime" label="更新时间" width="180px"/>
            <el-table-column align="center" width="200px" fixed="right" label="操作">
                <template #default="{ row }">
                    <el-button size="small" type="primary" @click="showUpdateDialog(row.id)">编辑</el-button>
                    <el-button size="small" type="danger" @click="deleteById(row.id)">删除</el-button>
                </template>
            </el-table-column>
        </el-table>
        <el-pagination
            v-model:current-page="categoryQuery.page"
            v-model:page-size="categoryQuery.limit"
            :page-sizes="[10, 20, 30, 40]"
            layout="total, sizes, prev, pager, next, jumper"
            :total="total"
            @change="loadData"
            style="margin-top: 20px; justify-content: flex-end"
        />
    </el-card>

    <!--添加、编辑弹出框-->
    <el-dialog v-model="dialogFormVisible" :title="选择分类" width="30%" :lock-scroll="false">
        <el-form :model="category">
            <el-form-item label="名字" :label-width="60">
                <el-input v-model="category.name" autocomplete="off" />
            </el-form-item>
            <el-form-item label="分类级别">
                <el-radio-group v-model="category.level" @change="onLevelChange">
                    <el-radio :label="0">一级分类</el-radio>
                    <el-radio :label="1">二级分类</el-radio>
                </el-radio-group>
            </el-form-item>
            <el-form-item v-if="category.level === 1" label="父分类" :label-width="60">
                <el-select v-model="category.parentId" :value-on-clear="0" clearable placeholder="请选择服分类" style="width: 200px">
                    <el-option
                        v-for="category in topCategoryList"
                        :key="category.id"
                        :label="category.name"
                        :value="category.id"
                    />
                </el-select>
            </el-form-item>
        </el-form>
        <template #footer>
            <div class="dialog-footer">
                <el-button @click="dialogFormVisible = false">取消</el-button>
                <el-button type="primary" @click="addOrUpdate">
                    确认
                </el-button>
            </div>
        </template>
    </el-dialog>
</template>

<style scoped>
    .avatar-uploader .avatar {
        width: 178px;
        height: 178px;
        display: block;
    }
</style>

<style>
    .avatar-uploader .el-upload {
        border: 1px dashed var(--el-border-color);
        border-radius: 6px;
        cursor: pointer;
        position: relative;
        overflow: hidden;
        transition: var(--el-transition-duration-fast);
    }

    .avatar-uploader .el-upload:hover {
        border-color: var(--el-color-primary);
    }

    .el-icon.avatar-uploader-icon {
        font-size: 28px;
        color: #8c939d;
        width: 178px;
        height: 178px;
        text-align: center;
    }
</style>